The UIS Glossary includes statistical terms related to education, science, technology and innovation, culture, and communication & information . Some of the entries contain translations in one or more of the following languages: Arabic, English, French and Spanish. Other entries provide more detailed information, such as definitions, calculation formulas for indicators and sources. Indicators are marked with an asterisk (*).

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Item Response Theory

Definition
Group of mathematical models for relating and predicting the individual’s performance on a test item to his level of performance on a scale of the ability or trait being measured, and the item’s characteristic parameters: guessing, discrimination and difficulty parameters.

Théorie de la réponse d’item

Définition
Groupe de modèles mathématiques permettant de mettre en rapport et de prévoir le score d’un individu pour un item donné avec son niveau de performance sur une échelle relative à la compétence ou à la caractéristique mesurée, et les paramètres caractéristiques de l’item : supposition, discrimination et difficulté.

Teoría de respuesta a los ítems

Definición
Grupo de modelos matemáticos diseñados para predecir y relacionar el desempeño de una persona en un ítem de la prueba con su nivel de desempeño de acuerdo a la escala de habilidad o característica bajo medición y los parámetros característicos del ítem: parámetros de conjetura, discriminación y dificultad.